enc28j60 Microchip Technology Inc., enc28j60 Datasheet - Page 6

• Manufacturer Part Number: enc28j60
• Description: Stand-alone Ethernet Controller With Spi Interface
• Manufacturer: Microchip Technology Inc.

ENC28J60
FIGURE 1-2:
TABLE 1-1:
DS39662B-page 4
V
V
CLKOUT
INT
NC
SO
SI
SCK
CS
RESET
V
TPIN-
TPIN+
RBIAS
V
TPOUT-
TPOUT+
V
V
V
V
V
OSC1
OSC2
V
LEDB
LEDA
V
Legend:
Note 1:
Pin Name
CAP
SS
SSRX
DDTX
SSTX
DDRX
DDPLL
SSPLL
SSOSC
DDOSC
DD
2:
3:
4:
5:
I = Input, O = Output, P = Power, DIG = Digital input, ANA = Analog signal input, ST = Schmitt Trigger
Pins have a maximum current capacity of 8 mA.
Pins have a maximum current capacity of 4 mA.
Pins are 5V tolerant.
Pins have an internal weak pull-up to V
Pins have a maximum current capacity of 12 mA.
SOIC, SSOP
SPDIP,
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
Pin Number
MCU
PINOUT I/O DESCRIPTIONS
SDO
INT
SCK
TYPICAL ENC28J60-BASED INTERFACE
SDI
I/O
X
QFN
25
26
27
28
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
SCK
INT
CS
SO
SI
Type
Pin
O
O
O
O
O
O
O
O
O
P
P
P
P
P
P
P
P
P
P
P
I
I
I
I
I
I
I
I
TX/RX
Buffer
Buffer
Type
ANA
ANA
ANA
ANA
DD
ST
ST
ST
ST
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
.
Preliminary
2.5V output from internal regulator. A low Equivalent Series Resistance
(ESR) capacitor, with a typical value of 10 F and a minimum value of
1 F to ground, must be placed on this pin.
Ground reference.
Programmable clock output pin.
INT interrupt output pin.
Reserved function; always leave unconnected.
Data out pin for SPI interface.
Data in pin for SPI interface.
Clock in pin for SPI interface.
Chip select input pin for SPI interface.
Active-low device Reset input.
Ground reference for PHY RX.
Differential signal input.
Differential signal input.
Bias current pin for PHY. Must be tied to ground via a resistor (refer to
Section 2.4 “Magnetics, Termination and Other External Components”
for details).
Positive supply for PHY TX.
Differential signal output.
Differential signal output.
Ground reference for PHY TX.
Positive 3.3V supply for PHY RX.
Positive 3.3V supply for PHY PLL.
Ground reference for PHY PLL.
Ground reference for oscillator.
Oscillator input.
Oscillator output.
Positive 3.3V supply for oscillator.
LEDB driver pin.
LEDA driver pin.
Positive 3.3V supply.
ENC28J60
MAC
(5)
(5)
PHY
(2)
(3)
(3)
(2)
Description
(3, 4)
TPOUT+/-
TPIN+/-
(1)
LEDA
LEDB
(3,4)
TRANSFORMER
© 2006 Microchip Technology Inc.
ETHERNET
RJ45